LIGO’s quantum response to squeezed states
Gravitational Wave interferometers achieve their profound sensitivity by combining a Michelson interferometer with optical cavities, suspended masses, and now, squeezed quantum states of light. These states modify the measurement process of the LIGO, VIRGO and GEO600 interferometers to reduce the...
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| Format: | Article |
| Language: | English |
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American Physical Society (APS)
2022
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| Online Access: | https://hdl.handle.net/1721.1/142161 |
| _version_ | 1811090426933805056 |
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| author | Mavalvala, Nergis |
| author2 | LIGO (Observatory : Massachusetts Institute of Technology) |
| author_facet | LIGO (Observatory : Massachusetts Institute of Technology) Mavalvala, Nergis |
| author_sort | Mavalvala, Nergis |
| collection | MIT |
| description | Gravitational Wave interferometers achieve their profound sensitivity by
combining a Michelson interferometer with optical cavities, suspended masses,
and now, squeezed quantum states of light. These states modify the measurement
process of the LIGO, VIRGO and GEO600 interferometers to reduce the quantum
noise that masks astrophysical signals; thus, improvements to squeezing are
essential to further expand our gravitational view of the universe. Further
reducing quantum noise will require both lowering decoherence from losses as
well more sophisticated manipulations to counter the quantum back-action from
radiation pressure. Both tasks require fully understanding the physical
interactions between squeezed light and the many components of km-scale
interferometers. To this end, data from both LIGO observatories in observing
run three are expressed using frequency-dependent metrics to analyze each
detector's quantum response to squeezed states. The response metrics are
derived and used to concisely describe physical mechanisms behind squeezing's
simultaneous interaction with transverse-mode selective optical cavities and
the quantum radiation pressure noise of suspended mirrors. These metrics and
related analysis are broadly applicable for cavity-enhanced optomechanics
experiments that incorporate external squeezing, and -- for the first time --
give physical descriptions of every feature so far observed in the quantum
noise of the LIGO detectors. |
| first_indexed | 2024-09-23T14:45:59Z |
| format | Article |
| id | mit-1721.1/142161 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:45:59Z |
| publishDate | 2022 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1421612023-12-07T18:02:48Z LIGO’s quantum response to squeezed states Mavalvala, Nergis LIGO (Observatory : Massachusetts Institute of Technology) Gravitational Wave interferometers achieve their profound sensitivity by combining a Michelson interferometer with optical cavities, suspended masses, and now, squeezed quantum states of light. These states modify the measurement process of the LIGO, VIRGO and GEO600 interferometers to reduce the quantum noise that masks astrophysical signals; thus, improvements to squeezing are essential to further expand our gravitational view of the universe. Further reducing quantum noise will require both lowering decoherence from losses as well more sophisticated manipulations to counter the quantum back-action from radiation pressure. Both tasks require fully understanding the physical interactions between squeezed light and the many components of km-scale interferometers. To this end, data from both LIGO observatories in observing run three are expressed using frequency-dependent metrics to analyze each detector's quantum response to squeezed states. The response metrics are derived and used to concisely describe physical mechanisms behind squeezing's simultaneous interaction with transverse-mode selective optical cavities and the quantum radiation pressure noise of suspended mirrors. These metrics and related analysis are broadly applicable for cavity-enhanced optomechanics experiments that incorporate external squeezing, and -- for the first time -- give physical descriptions of every feature so far observed in the quantum noise of the LIGO detectors. 2022-04-28T12:21:57Z 2022-04-28T12:21:57Z 2021 2022-04-28T12:12:37Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142161 Mavalvala, Nergis. 2021. "LIGO’s quantum response to squeezed states." Physical Review D, 104 (6). en 10.1103/PHYSREVD.104.062006 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Mavalvala, Nergis LIGO’s quantum response to squeezed states |
| title | LIGO’s quantum response to squeezed states |
| title_full | LIGO’s quantum response to squeezed states |
| title_fullStr | LIGO’s quantum response to squeezed states |
| title_full_unstemmed | LIGO’s quantum response to squeezed states |
| title_short | LIGO’s quantum response to squeezed states |
| title_sort | ligo s quantum response to squeezed states |
| url | https://hdl.handle.net/1721.1/142161 |
| work_keys_str_mv | AT mavalvalanergis ligosquantumresponsetosqueezedstates |